Senior MLE - Blockchain AI

Harnham is looking for a Senior MLE - Blockchain AI

Job description

Do you have 4+ years of hands-on ML experience and enjoy deploying models into production?

Have you worked with GenAI / LLMs and modern ML tooling in real systems?

Are you interested in crypto, blockchain, and applying ML to complex on-chain data?


A Series B, high-growth SaaS platform delivering institutional-grade blockchain intelligence is hiring a Senior AI/ML Engineer. Often described as the Bloomberg for crypto, the platform helps investors discover opportunities, perform due diligence, and defend portfolios using AI-driven insights.


This is a senior, hands-on role for someone strong across data science, applied ML, and cloud deployment, who wants to work in a lean team with real ownership.


Why join?

You’ll join a small, senior AI/ML team working on core product features such as:

  • Large-scale wallet labelling and behavioural analysis
  • NFT price estimation using ML
  • Trading and risk signals built on blockchain data


The environment is fast-moving, product-led, and AI-first, with genuine room to shape how ML is applied across the platform.


Requirements

  • 4-7+ years of professional experience in Data Science / ML roles
  • Strong data science foundations (EDA, feature engineering, model evaluation, validation)
  • Hands-on experience with ML models in production
  • Cloud & MLOps exposure (GCP preferred; AWS/Azure acceptable)
  • Experience with GenAI / LLMs (commercial or serious hands-on experimentation)
  • Strong Python and modern ML tooling (e.g. Scikit-learn, XGBoost, TensorFlow or PyTorch)
  • Clear interest in crypto / blockchain (commercial experience a plus, curiosity required)


Responsibilities

  • Build, train, and improve ML models on large-scale blockchain datasets
  • Take models from exploration to production, working closely with engineering
  • Apply GenAI / LLM approaches where they add real product value
  • Maintain high DS/ML standards across experimentation, monitoring, and iteration
  • Contribute to best practices in a lean, senior AI team


Key details

  • Salary: up to ~£135k base + equity (4-year vest, 1-year cliff) + bonus
  • Location: Fully remote (UK)
  • Stack: Python, GCP, ML frameworks, LLM APIs
  • Visa: Cannot sponsor
  • Team: Senior, small, highly technical


If you’re a senior ML engineer with strong DS fundamentals, real deployment experience, and a genuine interest in crypto, this is a high-impact role with a lot of ownership.


Interested? Please apply below.

Extra information

Status
Open
Education Level
Secondary School
Location
United Kingdom
Type of Contract
Full-time jobs
Published at
17-01-2026
Profession type
Accountancy
Full UK/EU driving license preferred
No
Car Preferred
No
Must be eligible to work in the EU
No
Cover Letter Required
No
Languages
English

Accountancy jobs | Full-time jobs | Secondary School

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